<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Introduction</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="book.posix.html">POSIX</a></div> <div class="next" style="text-align: right; float: right;"><a href="posix.setup.html">Installing/Configuring</a></div> <div class="up"><a href="book.posix.html">POSIX</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="intro.posix" class="preface"> <h1 class="title">Introduction</h1> <p class="para"> This module contains an interface to those functions defined in the IEEE 1003.1 (POSIX.1) standards document which are not accessible through other means. </p> <div class="warning"><strong class="warning">Warning</strong> <p class="para"> Sensitive data can be retrieved with the POSIX functions, e.g. <span class="function"><a href="function.posix-getpwnam.html" class="function">posix_getpwnam()</a></span> and friends. None of the POSIX function perform any kind of access checking when <a href="ini.sect.safe-mode.html#ini.safe-mode" class="link">safe mode</a> is enabled. It's therefore <em class="emphasis">strongly</em> advised to disable the POSIX extension at all (use <em>--disable-posix</em> in your configure line) if you're operating in such an environment. </p> </div> <blockquote class="note"><p><strong class="note">Note</strong>: <span class="simpara">This extension is not available on Windows platforms.</span></p></blockquote> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="book.posix.html">POSIX</a></div> <div class="next" style="text-align: right; float: right;"><a href="posix.setup.html">Installing/Configuring</a></div> <div class="up"><a href="book.posix.html">POSIX</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>